The increase in the rate of reaction with temperature is due to Decrease in activation energy Increase in the number of effective collisions Increase in the average kinetic energy of the reacting molecules None of these TRUE ANSWER : ? YOUR ANSWER : ?
Most important characteristics of gas-liquid reactors are the Both A and B Liquid hold-up None of these Specific inter-facial area TRUE ANSWER : ? YOUR ANSWER : ?
The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of E/R is 9210°K 8764°K 8987°K 8621°K TRUE ANSWER : ? YOUR ANSWER : ?
Space velocity Describes the extensive operating characteristics of a tubular flow reactor Is a measure of the ease of the reaction All of these Is the maximum feed rate pre unit volume of reactor for a given conversion TRUE ANSWER : ? YOUR ANSWER : ?
The rate constant of a chemical reaction increases by increasing the Reactant's concentration Pressure None of these Temperature TRUE ANSWER : ? YOUR ANSWER : ?
Sometimes, batch process is preferred over continuous process, when the product Sales demand is fluctuating Neither A nor B Quality & yield can not be achieved in continuous processes, because of long residence time Both A & B TRUE ANSWER : ? YOUR ANSWER : ?
If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the Neither A nor B Both A & B Temperature Pressure TRUE ANSWER : ? YOUR ANSWER : ?
For the reaction, A + B → 2B + C, rA = 2rB rA = rB/2 rA = -rB rA = rB TRUE ANSWER : ? YOUR ANSWER : ?
A catalyst in a chemical reaction Increases the frequency of collisions of reacting species All of these Alters the reaction mechanism Decreases the activation energy TRUE ANSWER : ? YOUR ANSWER : ?
Fractional conversion __________ for an exothermic reversible chemical reaction, when the temperature is maximum. Remains unchanged Increases Unpredictable from the data Decreases TRUE ANSWER : ? YOUR ANSWER : ?